Deck 18: Hematology

Question 1

Which of the following results in leukopenia?

A)Appendicitis
B)Chickenpox
C)Chemotherapy
D)Rheumatic fever

Answer 1

Chemotherapy

Question 2

Which of the following red blood cell indices measures the average size of a single red blood cell?

A)MCV
B)MCH
C)MCHC
D)RDW

Answer 2

MCV

Question 3

What is the average life span of a red blood cell?

A)1 week
B)30 days
C)120 days
D)6 months

Answer 3

120 days

Question 4

Mr.Peterson has a hemoglobin reading of 16.This is considered to be

A)within the reference range.
B)above the reference range.
C)below the reference range.
D)an invalid result.

Question 5

Pus consists of all of the following except

A)dead leukocytes.
B)erythrocytes.
C)dead bacteria.
D)dead tissue cells.

Question 6

Leukocytes do their work in the

A)circulatory system.
B)tissues.
C)lymphatic system.
D)central nervous system.

Question 7

In an adult,red blood cells are formed in the red bone marrow of the

A)ribs.
B)sternum.
C)skull.
D)ends of the long bones of the limbs.
E)All of the above are correct.

Question 8

The plasma functions in

A)transporting electrolytes needed by the cells.
B)transporting nutrients to the tissues.
C)picking up wastes from the tissues.
D)transporting antibodies, enzymes, and hormones.
E)all of the above ways.

Question 9

How many pints of blood does the average adult contain?

A)4 to 6 pints
B)8 to 10 pints
C)10 to 12 pints
D)15 to 20 pints

Question 10

The movement of leukocytes through the pores of the capillaries is known as

A)leukocytosis.
B)phagocytosis.
C)flagellation.
D)diapedesis.

Question 11

The function of hemoglobin is to

A)defend the body against infection.
B)transport oxygen in the body.
C)assist in blood clotting.
D)transport electrolytes in the body.

Question 12

A mature erythrocyte has a _____ shape and _____ nucleus.

A)biconcave; contains a
B)round; contains a multilobed
C)convex; does not contain a
D)biconcave; does not contain a

Question 13

What is the normal range for a red blood cell count for a woman (in cells per cubic millimeter of blood)?

A)3 to 4 million
B)4 to 5.5 million
C)4.5 to 6.2 million
D)5 to 6 million

Question 14

When using a microhematocrit centrifuge,the hematocrit test results should be read at the

A)top of the red cell column.
B)bottom of the red cell column.
C)top of the buffy coat.
D)top of the plasma column.

Question 15

An abnormal increase in the number of leukocytes is known as

A)lymphocytosis.
B)leukopenia.
C)leukocytosis.
D)hyperleukia.

Question 16

A low hemoglobin reading may occur with all of the following except

A)anemia.
B)polycythemia.
C)leukemia.
D)severe hemorrhaging.

Question 17

Mr.Johnson has a hematocrit reading of 60.This is considered to be

A)increased.
B)decreased.
C)normal.
D)invalid.

Question 18

What is the normal range for a platelet count for an adult (in platelets per cubic millimeter of blood)?

A)5000 to 10,000
B)12 to 16
C)180,000 to 300,000
D)150,000 to 400,000

Question 19

Mrs.Nelson has a white blood cell count of 14,500.This is considered to be

A)within the reference range.
B)above the reference range.
C)below the reference range.
D)an inaccurate test result.

Question 20

Which of the following tests is not included in a CBC?

A)Differential white blood cell count
B)Hemoglobin
C)Hematocrit
D)Prothrombin time
E)Red and white blood cell counts

Question 21

Which of the following white blood cells has granules in the cytoplasm that stain bright reddish orange?

A)Neutrophil
B)Basophil
C)Lymphocyte
D)Monocyte
E)Eosinophil

Question 22

Which of the following may occur if the PT/INR blood tube is not filled to the exhaustion of the vacuum?

A)Hemolysis of the blood specimen
B)Clotting of the blood specimen
C)Inaccurate test results
D)Contamination of the blood specimen

Question 23

An increase in neutrophils occurs during

A)an acute infection.
B)polycythemia.
C)bone marrow damage.
D)a chronic infection.

Question 24

What is the function of warfarin?

A)To inhibit the formation of blood clots
B)To prevent atrial fibrillation
C)To encourage blood clotting
D)To speed up production of red blood cells

Question 25

An immature form of a neutrophil is known as a

A)plasma cell.
B)mast cell.
C)band.
D)seg.

Question 26

The results of a differential white blood cell count indicate there are no basophils.This is considered to be

A)below the reference range.
B)within the reference range.
C)above the reference range.
D)invalid.

Question 27

Which of the following red blood cell indices measures the average concentration of hemoglobin within a single red blood cell?

A)MCV
B)MCH
C)MCHC
D)RDW

Question 28

Which of the following is not a granular leukocyte?

A)Neutrophil
B)Eosinophil
C)Basophil
D)Monocyte

Question 29

What is the most common cause of microcytic anemia?

A)A lack of iron in the diet
B)A lack of vitamin B₁₂ in the body
C)Kidney disease
D)Bone cancer

Question 30

What is the PT/INR result of a healthy individual with a normal clotting ability?

A)10 to 20 seconds
B)0.8 to 1.2
C)1 to 2
D)2.5 to 3.5

Question 32

The primary function of a neutrophil is to

A)engulf pathogens through phagocytosis.
B)act as a scavenger to clean up debris.
C)produce antibodies.
D)transport carbon dioxide.

Question 33

The nucleus of a neutrophil generally contains

A)three to five lobes.
B)six to eight lobes.
C)fine granules.
D)no lobes.

Question 34

How often should a patient on warfarin therapy have a PT/INR test performed?

A)Once each week
B)Every 2 to 4 weeks
C)Every 2 months
D)Every 6 months

Question 35

Which of the following is the largest white blood cell?

A)Neutrophil
B)Basophil
C)Lymphocyte
D)Monocyte
E)Eosinophil

Question 36

The results of a differential white blood cell count indicate that there are 40 neutrophils.This is considered to be

A)below the reference range.
B)within the reference range.
C)above the reference range.
D)invalid.

Question 37

An increase in eosinophils often occurs with

A)an acute infection.
B)congestive heart failure.
C)allergic conditions.
D)chemotherapy.

Question 38

Which of the following white blood cells has a light-staining nucleus that is often masked by the presence of large dark-staining granules?

A)Neutrophil
B)Basophil
C)Lymphocyte
D)Monocyte
E)Eosinophil

Question 39

An increase in lymphocytes usually occurs

A)with an asthma attack.
B)with iron-deficiency anemia.
C)during an invasion by parasites.
D)with infectious mononucleosis.

Question 40

Match each word part meaning with its correct word part.

A)anis/o
B)chrom/o
C)cyt/o
D)hem/o
E)hypo-
F)leuk/o
G)-lysis
H)macr/o
I)micro-
J)-osis
K)-penia
L)phag/o

1.Color
2.Below,deficient
3.Unequal,dissimilar
4.Abnormal reduction in number
5.Abnormally large
6.Abnormal condition
7.Breakdown
8.Cell
9.Blood
10.Small
11.Eat,swallow
12.White